METHOD AND DEVICE FOR REAL-TIME MEASUREMENT OF A LOCAL DOSE UPON BOMBARDMENT OF A TARGET BY HADRONS BY MEANS OF PROMPT GAMMA RAYS

摘要

Method for real-time measurement of a local dose received by a region (25) of a target (20) upon bombardment of said target (20) by an incident beam of hadrons (10), which generates at least prompt gamma rays and neutrons, in which the particles emitted by the target (20) are measured by collimating the region (25) of the target (20) and by placing a detector (45) at a distance L from the region (25) of the target (20) to be measured. Said detector (45) is linked to particle energy and time-of-flight measurement means, in which the number of prompt gamma rays received by said detector (45) is determined by selecting the recorded events, and a two-directional charged-particle detection system, placed in the beam of incident hadrons (10) before the target (20), is used so as to obtain the transverse position of the incident hadrons (10) in order to provide spatial information about the prompt gamma rays.